"Chopped and screwed (sometimes called screwed and chopped or slowed and throwed) refers to a technique of remixinghip hop music which developed in the Houston hip hop scene in the early 1990s. This is accomplished by slowing the tempo down to between 60 and 70 quarter-note beats per minute and applying techniques such as skipping beats, record scratching, stop-time, and affecting portions of the music to make a "chopped-up" version of the original.

DJ Screw is largely recognized as the innovator behind the chopped and screwed genre.

DJ Screw's key technique involved playing the same record on both turntables with a delay between them of one beat and quickly moving the crossfader side to side. This created an effect where the words or beats in a song were repeated without interrupting its tempo.

Today it is still common to see screwed and chopped versions of mixtapes and albums released alongside the regular speed versions, sometimes in a double disc format with one disc screwed and the other regular speed."

i used to do what don nat said on ssl 2.0 when the had the 33 n 45 tab right on the main virtual decks. chopped and screwed on the fly at the click of button but sdj has not given that back to us.....smh i hope they do

I can easily do that with Spark DJ! I've been into DJing these days and I love how these music turn out. The app's an absolute surpise! It has dope playlists and takes requests. You can download it here: party.dj. And just recently, I got several of my mashups shared on soundcloud. I'm thinking of starting a blog, too.